"Normally heard either during the night at middle-upper latitudes or at sunrise in middle (as in the Alvord Desert Dawn Chorus recording), this was recorded IN THE MIDDDLE OF THE DAY 40 miles northeast of Fairbanks, Alaska, right within the Auroral Zone. It went on continuously for 3 days!
Had it not been daylight, the Auroral Borealis would have been dancing in the skies right overhead!
Weird squawks, chirps, hiss, and occasional very low groans can be heard. Recorded in central Alaska on 06 September 1995 between 1945-2200 UT. A week long major magnetic storm with accompanying beautiful auroral displays at night and strong auroral VLF chorus audible around the clock! Amazing variety of hissband, tonal emission bands, chorus barks, croaks, whoops, a few whistlers, etc. The weather during the recording session by the Chatanika River was very windy at times, but also sometimes just a slight breeze. Many strong gusts of wind induced some mechanical noise in the WR-3E VLF receiver. A such, the approximately 2 1/2 hours of tape recordings were marred at times by this receiver/mechanical wind noise. However, there are up to 10-minute segments free of this undesired noise."
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